| 摘要 |
The present invention relates to a planning board comprising a flat support. This board is characterised in that it comprises at least one pair of vertical sliders 2 fixed to the flat support 1 and each exhibiting a U-shaped cross section, these two sliders opening out towards one another, rectangular plates 3 made of flexible and elastic material extending horizontally between the two vertical sliders with U-shaped cross section in which they are engaged and held by friction, each of these plates 3 exhibiting, on one of its faces, two horizontal sliders 4 with U-shaped cross-section open towards one another and in which can be engaged and held elements forming markers 5. <IMAGE>
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